code: def test_get_first_bday(dt, exp_week_day, exp_first_day):
      assert dt.weekday() == exp_week_day
      assert get_firstbday(dt.year, dt.month) == exp_first_day
  
file_path: pandas/pandas/tests/tslibs/test_liboffsets.py
imports: from datetime import datetime
  import pytest
  from pandas._libs.tslibs.ccalendar import get_firstbday, get_lastbday
  import pandas._libs.tslibs.offsets
  from pandas._libs.tslibs.offsets import roll_qtrday
  from pandas import Timestamp
label_desc: Use image node_id 3 for calling a global function with example usage: test_get_first_bday(dt, exp_week_day, exp_first_day) without return types